import sys

import pygame

from settings import Settings
from ship import Ship
import game_functions as gf

def run_game():
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))
    bg_color = (230, 230, 230)
    pygame.display.set_caption("Alien Invasion")

#     创建一艘飞船    
    ship = Ship(screen)    

    while True:
        gf.check_events()

        screen.fill(ai_settings.bg_color)
        ship.blitme()
        pygame.display.flip()


run_game()        
